package cn.sytton.taffe.job.util;

import cn.sytton.taffe.job.constants.ScheduleConstants;
import cn.sytton.taffe.job.entity.JobEntity;
import cn.sytton.taffe.job.exception.TaskException;
import org.quartz.*;

import java.util.Objects;

/**
 * 定时任务工具类
 * 
 * @author ruoyi
 *
 */
public class ScheduleUtils {
    /**
     * 创建定时任务
     */
    public static void createScheduleJob(Scheduler scheduler, JobEntity jobEntity) throws SchedulerException, TaskException {
        Class<? extends Job> jobClass = getQuartzJobClass(jobEntity);
        // 构建job信息
        String jobId = jobEntity.getJobId();
        String jobGroup = jobEntity.getJobGroup();
        JobDetail jobDetail = JobBuilder.newJob(jobClass)
                .withIdentity(getJobKey(jobId, jobGroup)).build();

        // 表达式调度构建器
        CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(jobEntity.getCronExpression());
        cronScheduleBuilder = handleCronScheduleMisfirePolicy(jobEntity, cronScheduleBuilder);

        // 按新的cronExpression表达式构建一个新的trigger
        CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(getTriggerKey(jobId, jobGroup))
                .withSchedule(cronScheduleBuilder).build();

        // 放入参数，运行时的方法可以获取
        jobDetail.getJobDataMap().put(ScheduleConstants.TASK_PROPERTIES, jobEntity);

        // 判断是否存在
        if (scheduler.checkExists(getJobKey(jobId, jobGroup))) {
            // 防止创建时存在数据问题 先移除，然后在执行创建操作
            scheduler.deleteJob(getJobKey(jobId, jobGroup));
        }

        // 判断任务是否过期
        if (CronUtils.getNextExecution(jobEntity.getCronExpression()) != null) {
            // 执行调度任务
            scheduler.scheduleJob(jobDetail, trigger);
        }

        // 暂停任务
        if (Objects.equals(jobEntity.getStatus(), ScheduleConstants.Status.PAUSE.getValue())) {
            scheduler.pauseJob(ScheduleUtils.getJobKey(jobId, jobGroup));
        }
    }

    /**
     * 设置定时任务策略
     */
    public static CronScheduleBuilder handleCronScheduleMisfirePolicy(JobEntity jobEntity, CronScheduleBuilder cb)
            throws TaskException {
        switch (jobEntity.getMisfirePolicy()) {
            case ScheduleConstants.MISFIRE_DEFAULT:
                return cb;
            case ScheduleConstants.MISFIRE_IGNORE_MISFIRES:
                return cb.withMisfireHandlingInstructionIgnoreMisfires();
            case ScheduleConstants.MISFIRE_FIRE_AND_PROCEED:
                return cb.withMisfireHandlingInstructionFireAndProceed();
            case ScheduleConstants.MISFIRE_DO_NOTHING:
                return cb.withMisfireHandlingInstructionDoNothing();
            default:
                throw new TaskException("The task misfire policy '" + jobEntity.getMisfirePolicy()
                        + "' cannot be used in cron schedule tasks", TaskException.Code.CONFIG_ERROR);
        }
    }

    /**
     * 得到quartz任务类
     *
     * @param jobEntity 执行计划
     * @return 具体执行任务类
     */
    private static Class<? extends Job> getQuartzJobClass(JobEntity jobEntity) {
        return jobEntity.getConcurrent() == 0 ? QuartzJobExecution.class : QuartzDisallowConcurrentExecution.class;
    }

    /**
     * 构建任务触发对象
     */
    public static TriggerKey getTriggerKey(String jobId, String jobGroup) {
        return TriggerKey.triggerKey(ScheduleConstants.TASK_CLASS_NAME + jobId, jobGroup);
    }

    /**
     * 构建任务键对象
     */
    public static JobKey getJobKey(String jobId, String jobGroup) {
        return JobKey.jobKey(ScheduleConstants.TASK_CLASS_NAME + jobId, jobGroup);
    }

    /**
     * 检查包名是否为白名单配置
     * 
     * @param invokeTarget 目标字符串
     * @return 结果
     */
    public static boolean whiteList(String invokeTarget) {
        // todo
        return true;
//        String packageName = StringUtils.substringBefore(invokeTarget, "(");
//        int count = StringUtils.countMatches(packageName, ".");
//        if (count > 1)
//        {
//            return StringUtils.containsAnyIgnoreCase(invokeTarget, Constants.JOB_WHITELIST_STR);
//        }
//        Object obj = SpringUtils.getBean(StringUtils.split(invokeTarget, ".")[0]);
//        return StringUtils.containsAnyIgnoreCase(obj.getClass().getPackage().getName(), Constants.JOB_WHITELIST_STR);
    }
}
